A new mid-size sedan named the K5 debuted for 2021, taking the Optima’s place in Kia’s lineup. The final-generation Optima offered several premium features, as well as two available ...

For those who remember the Optima days, the K5 GT might seem almost unrecognizable – and that's entirely the point. This isn't just another midsize sedan; it's Kia showing us exactly what they ...

For 2001, the Kia sedan range expanded with the mid-sized Optima that featured the brand's first six-cylinder engine offered in North America. Also debuting was the highly-affordable Kia Rio ...